How to calibrate a single-phase electric energy meter with a non-contact voltage meter pen 100 watt inspection lamp
Test the single-phase electric energy meter, and walk around the 100-watt light bulb. The constant removes 36,000, the theoretical unit of time is seconds.
The measured theoretical time difference, the error of 2% is good. Real more reason, less words, less words, less reason, more words and more words.
